About MD62 Thermal Conductor CO2 Gas Sensor
MD62 gas sensor consists of an active element and a reference element with the same resistance, both elements are placed in a wheatstone bridge circuit. The analyzing gas contents changes, the overall thermal coefficient of mixed gases changed correspondingly; when the active element meet the combustible gas, its resistance become smaller, when It meet other gas, , Its resistance become larger(air background), the bridge circuit output the voltage change, this change increase according to gas concentration, the reference element as a benchmark while for temperature compensation.
Thermal Conductor CO2 Gas Sensor Features
Detection Gas | CO2 |
Type | Thermal conduction |
Working Voltage (V) | 3.0±0.1 (DC) |
Working current(mA) | 120 mA |
Sensitivity (mV/10%CO2) | 5 |
linearity | 5% |
Response time (90%) | 15 s |
Resume time (90%) | 30 s |
Using Environment | -20~+5095%RH |
Storage Environment | -20~+7095%RH |
Dimensionmm | 19×9.5×14 |
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